update: allow update to existing branches with invalid names (issue3710) Starting with 361ab1e2086f, users are no longer able to update a working copy to a branch named with a "bad" character (such as ':'). Prior to v2.4, it was possible to create branch names using "bad" characters, so this breaks backwards compatibility. Mercurial must allow users to update to existing branches with bad names. However, it should continue to prevent the creation of new branches with bad names. A test was added to confirm that 'hg update' works as expected. The test uses a bundled repo that was created with an earlier version of Mercurial.

commit: increase perf by building a new addlist instead of editing the old one When commiting to a repo with lots of files (>170000), manifest.py:addlistdelta takes some time because it's editing a large array many times. Changing it to build a new array instead of editing the old one saves around 0.04 seconds on a 1.64 second commit. A 2.5% gain. The gain here is pretty minor, but it was blatantly at the top of the profiler report and the fix is straight forward. I tested it by comparing the arrays produced by the new and old logic while running all of the tests.

template engine: convert generator-based iterator to list-based iterator If a template iterator is implemented with generator, the iterator is exhau= sted after we use it. This leads to undesired behavior in template. This chang= e converts a generator-based iterator to list-based iterator when template en= gine first detects a generator-based iterator. All future usages of iterator wi= ll use list instead.

command: remove phase from the list of basic command This is not a basic command. There is no reason new user should needs to know about it. Thanks to Matt Mackall for pointing this.

merge with stable

phases: fix missing "error" module import (issue3707)

test-mq-qrefresh: test that the patch at qtip is indeed empty ...after qrefreshing a non-existent file

tests: only call check-code once The accepted warnings list is now empty, let's try to keep it that way.

ancestor: fix a comment (followup to 0b03454abae7)

revlog: allow reverse iteration with revlog.revs We often need to perform rev iteration in reverse order. This changeset makes it possible to do so, in order to avoid costly reverse or reversed() calls later.